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29 April, 17:29

Question. Which of the following are rational functions?

f (x) = 0

f (x) = (3x-1) / (x^2-4x+5)

f (x) = e^x

f (x) = (sinx) / (cosx)

f (x) = -4x^-3+5x^-1+7-18x^2

f (x) = x^1/2 - x + 8

All polynomials can be thought of as rational functions.

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  1. 29 April, 19:01
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    Step-by-step explanation:

    rational functions are:

    1) f (x) = (3x-1) / (x^2-4x+5)

    2) f (x) = -4x^-3+5x^-1+7-18x^2

    3) f (x) = 0
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